The RRS-MOD polarity reversing relay/synchronization module is intended for use with 2-wire and 4-wire i3 series detectors equipped with a built-in sounder, models 2WTA-B, 4WTA-B, 4WTAR-B, and 4WITAR-B. It is designed to allow all the detectors in the same loop to sound when one of the detectors goes into alarm, and to synchronize their audible output. The RRS-MOD also allows the silencing of the detector sounders from the alarm control panel.
I3 POLARITY REVERSAL MODULE, System Sensor ADI, System Sensor
System Sensor - Us,Fire,Fire Detection Devices,Smoke Detector Accessories